Search results for 'back focus' - page 1192
Which wide lens for huge landscapes?
[quote:3496ace15f="screwdriver222"]I have just come back from Cornwall and the two panos I took each composed of 6 shots handheld came out OK when stitched using ICE. Going to show us having teased that? They are very big files, but I will be putting one on Flickr and will give a link. I must say th...
Posted by JAK on 19/07/2017 - 10:48
Which wide lens for huge landscapes?
I think the OP might be back from the country trip by now:oops: but I'll second the use if the Sigma 8-16, it is a stunning piece of equipment8)
Posted by Defragged on 16/12/2017 - 20:13
Irix 15mm firefly focus lock
Dumb question.. Is the lock system supposed to lock or just increase the grip? Mine definitely doesn't lock makes just harder to focus.
Posted by sebas77 on 03/08/2017 - 19:53
Irix 15mm firefly focus lock
I thought it was supposed to lock, so you know it will stay at that setting ... for instance keep it at infinity focus
Posted by Conqueror on 03/08/2017 - 20:10
Irix 15mm firefly focus lock
dunno, it doesn't really matter, but I would like to know
Posted by sebas77 on 03/08/2017 - 20:34
Irix 15mm firefly focus lock
if you look on the irix site at the 15mm it is described in that way
Posted by Conqueror on 03/08/2017 - 20:46
Irix 15mm firefly focus lock
It doesn't lock as such. It just makes it impossible to accidently shift the ring. Given enough pressure, it is movable though I really would need to apply force to do that. Only did to try out how it works.
Posted by Mag07 on 03/08/2017 - 20:54
Irix 15mm firefly focus lock
I don't need to apply much force in my case but surely it's stiff enough to not be moved accidentally
Posted by sebas77 on 03/08/2017 - 22:37
New 50mm & 85mm lenses
I have given up on Pentax bringing out new primes anytime soon, I guess they just don't have the resources nowadays. Instead of waiting I am happily working with the DA lenses that are full frame compatible or close to it (DA35, DA35Ltd Macro, DA40 Ltd, DA50, DA*55, DA70Ltd, DA*200 and DA*300) ...
Posted by ronniemac on 19/08/2017 - 22:18
New 50mm & 85mm lenses
Talking of lenses you probably don't need Lomography is launching an oddity called the Neptune convertible lens system in K-mount, consisting of a mount with the mechanics in a single block and three prime glass fronts which they claim is all you need in your bag. With a common diameter you only nee...
Posted by RobL on 20/08/2017 - 07:51
Upgrade for DA 55-300mm?
I've owned a PLM lens since December. Sent back twice for lock button failing. otherwise i love it. Much more useful to me for travel than my 300 star. Optically and for AFC on my excellent K3 II it is superb. My gallery on here from the Sperm whale in December (that was my K3) onwards are taken ...
Posted by wvbarnes on 21/08/2017 - 20:43
Macro 100mm WR overexposing
I just tried the lens on a different body (K50) and it was fine. Also tried another mechanically-linked lens on the K1 and that was fine too. It just seems the combination of the 100mm macro and K1 is giving the overexposure problem. HarisF1, the lever springs back but not snappily so you could be ...
Posted by RobL on 27/08/2017 - 11:46
Macro 100mm WR overexposing
Further experimentation has shown that I get the most consistent results with AV Hyper mode, I just taken the same subject with a series of exposures in that mode, changing ISO and aperture, and they all look virtually identical. It also allows you to change focus mode which Auto won't. No idea why ...
Posted by RobL on 28/08/2017 - 15:57
Macro 100mm WR overexposing
Thanks John, yes I tried different metering and use centre-weighted metering as a default, except when spot metering is needed to avoid overcompensating for a dark background. The aperture lever doesn't click back sharply, it is as if it is damped so I suspect that is the issue. I have been further ...
Posted by RobL on 28/08/2017 - 17:02
A test of SMC Pentax-FA* 24mm f/2 AL versus Sony Distagon T* 24mm f/2 ZA SSM on Sony A7R II
I tested on Sony A7R II the only two autofocusing 24mm lenses with the speed of f/2 ever marketed: SMC Pentax-FA* 24mm f/2 AL [IF] and Sony Distagon T* 24mm f/2 ZA SSM, The entire test is available at my blog: https://towarzystwonieustraszonychsoczewek.blogspot.com/2017/09/wspoczesne-obiektywy-24-m...
Posted by JaroslawBrzezinski on 04/09/2017 - 19:23
2 x Teleconverter - Any Experience?
I'd steer clear. I have tried it with a number of lenses and found the AF very hit and miss, hunting all over the place. If you do get one in focus the IQ is still poor. That combination you have (150-450+1.4) is the best I've come across.
Posted by bforbes on 05/09/2017 - 10:01
Basic lens for K1
I have a collection of old manual focus lenses some "A" and some just "M" from 18mm to 135mm. However my AF lenses range from 90mm to 500mm. I need suggestions as to what is the best? lens to get as a basic everyday lens in the 18mm to say 90/105/135 AF range. It does not have to be F2.8 all the way...
Posted by vic cross on 14/10/2017 - 08:02
Basic lens for K1
Hi Vic, there's no single zoom for FF to cover all of that. I think you're heading towards a 2-lens solution. (Edit ....Barrie beat my post with his older Sigma/Tamron film era options.... There will always be debate about the quality of older zooms for the K1, so go with reviews and user feedb...
Posted by McGregNi on 14/10/2017 - 09:51
Basic lens for K1
Mike. Get in touch when you get back. CHEERS Vic
Posted by vic cross on 16/10/2017 - 08:03
Basic lens for K1
Stuart. sarcasm suits you :lol: :lol: but it looks like there's a new boy on the block. 24-90 looks a good 'un. I'll have a think about that when Mike gets back if he doesn't want a fortune for it. CHEERS Vic.
Posted by vic cross on 16/10/2017 - 10:49
